A vascular catheter system comprises a catheter body having a proximal portion with a proximal end, a distal end and work lumen therebetween and a distal portion with a proximal end, a distal end, a work lumen therebetween and a guidewire lumen distal to the work lumen. A first connector is secured to the distal end of the proximal portion and a second connector is secured to the proximal end of the distal portion. The first and second connectors can be selectively connected to each other to join the work lumens of the proximal and distal portions together.